CN205276238U - Normal position detection device based on collapsible loess - Google Patents
Normal position detection device based on collapsible loess Download PDFInfo
- Publication number
- CN205276238U CN205276238U CN201521090471.2U CN201521090471U CN205276238U CN 205276238 U CN205276238 U CN 205276238U CN 201521090471 U CN201521090471 U CN 201521090471U CN 205276238 U CN205276238 U CN 205276238U
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- porous disk
- porous disc
- collapsible loess
- detection device
- device based
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- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a normal position detection device based on collapsible loess, including concreteing container, pressure device, measuring device, porous disk and slim filter paper, pressure device sets up in the porous disk top and can exert pressure to porous disk, measuring device sets up in porous disk top measurement soil settlement volume, porous disk sets up inside concreteing the container, slim filter paper setting is in the porous disk below, this simple structure uses in a flexible way, can take on -the -spot soil sample to detect according to actual conditions to reduce the measured deviation that the soil sample was brought because of the uncertain factor in the laboratory, measurement accuracy is high, and contrastive analysis, combination are carried out to normal position testing result and laboratory detection result, can judge the important effect of playing to the settlement by soaking of ground.
Description
Technical field
This utility model belongs to detecting device field, relates to a kind of in situ detection device based on collapsible loess.
Background technology
Collapsible loess is under the weight stress effect of upper overburden layer, or under weight stress and additional stress combined effect, because of structural deterioration native after immersion, notable additional deformation occurs, belong to special soils. Its soil property is more uniform, short texture, pores'growth. Not by water-soaked time, common intensity is higher, and compressibility is less. When under a certain pressure by water-soaked, soil structure can be destroyed rapidly, produces bigger additional sinking, and intensity reduces rapidly, and the hazardness of building is big. Research collapsible loess is the important process before building on Loess Site, to prevent damp sink of foundation from building is produced harm. Coefficient of collapsibility is the important indicator evaluating collapsibility of loess, it is possible to judged saturated yielding type and the saturated yielding grade of loess by coefficient of collapsibility. So that it is determined that the treatment measures of loess foundation.
Summary of the invention
In view of this, the purpose of this utility model be in that to provide a kind of simple in construction, easy to use, can easily measure the in situ detection device of collapsible loess.
For reaching above-mentioned purpose, this utility model provides following technical scheme: a kind of in situ detection device based on collapsible loess, it is characterized in that: include consolidation container, pressue device, measurement apparatus, porous disc and slim filter paper, described pressue device is arranged on above porous disc and can apply pressure to porous disc, described measurement apparatus is arranged on measurement soil settlement amount above porous disc, described porous disc is arranged on inside consolidation container, and described slim filter paper is arranged on below porous disc.
Further, described pressue device is hydraulic cylinder, cylinder or jack.
Further, described measurement apparatus is sensor or dial gauge.
The beneficial effects of the utility model are in that: this simple in construction, use flexibly, the soil sample at scene can be taked to detect according to practical situation, to reduce soil sample in the lab because of measured deviation that uncertain factor is brought; Certainty of measurement is high, and in situ detection result and laboratory detection result are analyzed, combine, and can judge to play an important role to the settlement by soaking of ground.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, this utility model provides drawings described below to illustrate:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As it can be seen, the in situ detection device based on collapsible loess of the present utility model, including consolidation container 1, pressue device 2, measurement apparatus 3, porous disc 4 and slim filter paper 5; Described pressue device 2 is arranged on above porous disc 4 and can apply downward pressure to porous disc 4, described measurement apparatus 3 is arranged on the top of porous disc 4, it is internal that described porous disc 4 is arranged on consolidation container 1, and described slim filter paper 5 is arranged on the lower section of the top porous disc 4 of soil sample to be measured.
Concrete, choose the pedotheque of the soil layer to be measured of certain volume, pedotheque is placed in consolidation container 1, sample is put slim filter paper 5 and porous disc 4 successively, installs measurement apparatus 3. Applying certain precompression by pressue device 2 to porous disc 4 makes pedotheque contact between each parts up and down with instrument, is made zero by the numerical value of measurement apparatus. Then step by step apply pressure by pressue device 2 to porous disc 4, afterbody pressure is determined by fetching earth the degree of depth. The numerical value of measurement apparatus is read at set intervals, until numerical stability no longer changes after applying pressure. Injecting pure water in consolidation container, pure water penetrates in pedotheque by porous disc 4, reads the numerical value of measurement apparatus at set intervals, until numerical stability. The coefficient of collapsibility of collapsible loess is calculated by the ratio of the numerical difference of former and later two stability numbers that soak and pedotheque original height.
In the present embodiment, described measurement apparatus is sensor, by the settling amount of sensor measurement pedotheque; Certainly, dial gauge or other equipment accurately measuring distance is adopted can to realize this purpose equally.
Pressue device 2 in the present embodiment is jack; Certainly, hydraulic cylinder, cylinder or other equipment with pressure effect is adopted can to realize this purpose equally.
What finally illustrate is, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from this utility model claims limited range.
Claims (3)
1. the in situ detection device based on collapsible loess, it is characterized in that: include consolidation container, pressue device, measurement apparatus, porous disc and slim filter paper, described pressue device is arranged on above porous disc and can apply pressure to porous disc, described measurement apparatus is arranged on measurement soil settlement amount above porous disc, described porous disc is arranged on inside consolidation container, and described slim filter paper is arranged on below porous disc.
2. the in situ detection device based on collapsible loess according to claim 1, it is characterised in that: described pressue device is hydraulic cylinder, cylinder or jack.
3. the in situ detection device based on collapsible loess according to claim 1, it is characterised in that: described measurement apparatus is sensor or dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090471.2U CN205276238U (en) | 2015-12-24 | 2015-12-24 | Normal position detection device based on collapsible loess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090471.2U CN205276238U (en) | 2015-12-24 | 2015-12-24 | Normal position detection device based on collapsible loess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205276238U true CN205276238U (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521090471.2U Expired - Fee Related CN205276238U (en) | 2015-12-24 | 2015-12-24 | Normal position detection device based on collapsible loess |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205276238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459460A (en) * | 2018-12-25 | 2019-03-12 | 长安大学 | A kind of scanning electron microscope observation device and method of intact loess humidification sample |
-
2015
- 2015-12-24 CN CN201521090471.2U patent/CN205276238U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459460A (en) * | 2018-12-25 | 2019-03-12 | 长安大学 | A kind of scanning electron microscope observation device and method of intact loess humidification sample |
| CN109459460B (en) * | 2018-12-25 | 2023-10-27 | 长安大学 | Scanning electron microscope observation device and method for undisturbed loess humidification sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211224 |